METADATA block #0
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  length: XXX
  sample_rate: 44100 Hz
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  total samples: 5880
  MD5 signature: 74ffd4737eb5488d512be4af58943362
METADATA block #1
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  seek points: 10
    point 0: sample_number=0
    point 1: sample_number=4096
    point 2: PLACEHOLDER
    point 3: PLACEHOLDER
    point 4: PLACEHOLDER
    point 5: PLACEHOLDER
    point 6: PLACEHOLDER
    point 7: PLACEHOLDER
    point 8: PLACEHOLDER
    point 9: PLACEHOLDER
METADATA block #2
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  length: XXX
  media catalog number: 1234567890123
  lead-in: 88200
  is CD: true
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      ISRC: 
      type: AUDIO
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      ISRC: 
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METADATA block #3
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  length: XXX
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    comment[0]: REPLAYGAIN_TRACK_PEAK=0.99996948
    comment[1]: REPLAYGAIN_TRACK_GAIN=-7.89 dB
    comment[2]: REPLAYGAIN_ALBUM_PEAK=0.99996948
    comment[3]: REPLAYGAIN_ALBUM_GAIN=-7.89 dB
    comment[4]: artist=1
    comment[5]: title=2
METADATA block #4
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  application ID: 66616b65
  data contents:
METADATA block #5
  type: 126 (UNKNOWN)
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  data contents:
METADATA block #6
  type: 1 (PADDING)
  is last: true
  length: XXX
